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cn":"0001397403-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-15"},{"start":"2019-01-01","end":"2019-03-31","val":2109000,"accn":"0001397403-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-15","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":3566000,"accn":"0001397403-19-000028","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-14"},{"start":"2019-01-01","end":"2019-09-30","val":1790000,"accn":"0001397403-19-000057","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-14"},{"start":"2019-01-01","end":"2019-12-31","val":803000,"accn":"0001397403-20-000010","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":569000,"accn":"0001397403-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-15","frame":"CY2020Q1"}]}},"CapitalLeaseObligations":{"label":"Capital 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents.","units":{"USD":[{"end":"2015-12-31","val":7603000,"accn":"0001397403-17-000016","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2015-12-31","val":7603000,"accn":"0001397403-17-000019","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2015-12-31","val":7603000,"accn":"0001397403-17-000023","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-20"},{"end":"2015-12-31","val":7603000,"accn":"0001397403-18-000004","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-29","frame":"CY2015Q4I"},{"end":"2016-03-31","val":5690000,"accn":"0001397403-17-000016","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":9541000,"accn":"0001397403-17-000019","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6452000,"accn":"0001397403-17-000023","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-20","frame":"CY2016Q3I"},{"end":"2016-12-31","val":11449000,"accn":"0001397403-17-000016","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12"},{"end":"2016-12-31","val":11449000,"accn":"0001397403-17-000019","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14"},{"end":"2016-12-31","val":11449000,"accn":"0001397403-17-000023","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-20"},{"end":"2016-12-31","val":11449000,"accn":"0001397403-18-000004","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-29","frame":"CY2016Q4I"},{"end":"2017-03-31","val":48322000,"accn":"0001397403-17-000016","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":40164000,"accn":"0001397403-17-000019","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":34524000,"accn":"0001397403-17-000023","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-20","frame":"CY2017Q3I"},{"end":"2017-12-31","val":11789000,"accn":"0001397403-18-000004","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-29","frame":"CY2017Q4I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. 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The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project, usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property. Note that there are separate concepts for the current and noncurrent portions of long-term construction loans.","units":{"USD":[{"end":"2014-12-31","val":1000,"accn":"0001397403-15-000009","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2014Q4I"}]}},"ConversionOfStockAmountIssued1":{"label":"Conversion of Stock, Amount Issued","description":"\"The value of the financial instrument issued [noncash or part noncash] in the conversion of stock. 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For example, if a bond of this sort was issued to pay for sidewalks to be repaved in a certain community, an additional tax would be levied on homeowners in the area benefiting from this project.","units":{"USD":[{"end":"2011-12-31","val":2332000,"accn":"0001144204-13-018783","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-29","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2332000,"accn":"0001144204-13-018783","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-29"},{"end":"2012-12-31","val":2332000,"accn":"0001397403-14-000013","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1874000,"accn":"0001397403-14-000013","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28"},{"end":"2013-12-31","val":1874000,"accn":"0001397403-15-000009","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1642000,"accn":"0001397403-15-000009","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2014Q4I"},{"end":"2016-12-31","val":3581000,"accn":"0001397403-17-000023","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-20"},{"end":"2016-12-31","val":3600000,"accn":"0001397403-18-000004","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-29","frame":"CY2016Q4I"},{"end":"2017-09-30","val":3051000,"accn":"0001397403-17-000023","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-20","frame":"CY2017Q3I"},{"end":"2017-12-31","val":100000,"accn":"0001397403-18-000004","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-29"},{"end":"2017-12-31","val":100000,"accn":"0001397403-19-000013","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-12","frame":"CY2017Q4I"},{"end":"2018-12-31","val":100000,"accn":"0001397403-19-000013","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-12"},{"end":"2018-12-31","val":100000,"accn":"0001397403-20-000010","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2018Q4I"},{"end":"2019-12-31","val":100000,"accn":"0001397403-20-000010","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"SpecialAssessmentBondCurrent":{"label":"Special Assessment Bond, Current","description":"The current portion of the carrying value as of the balance sheet date of a type of municipal bond typically used to fund a development project. Also called special assessment limited liability bond, special district bond, special purpose bond, special tax bond and community development obligation. Interest owed to lenders is paid by taxes levied on the community benefiting from the particular bond-funded project. For example, if a bond of this sort was issued to pay for sidewalks to be repaved in a certain community, an additional tax would be levied on homeowners in the area benefiting from this project.","units":{"USD":[{"end":"2019-12-31","val":100000,"accn":"0001397403-20-000010","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-30","frame":"CY2019Q4I"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent 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Amount excludes temporary equity. Alternate caption for the concept is permanent 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Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. 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Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. 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