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Note 2 - Cash and Cash Equivalents and Restricted Cash
 9 Months Ended
Sep. 30, 2016
Notes to Financial Statements  
Cash and Cash Equivalents Disclosure [Text Block]
2. Cash and Cash Equivalents and Restricted Cash
 
The Company considers all highly liquid investments with original or remaining maturities of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents include cash balances held by our wholly owned subsidiaries, as well as cash held by majority owned subsidiaries, construction joint ventures, and the Company’s VIE that we consolidate. Refer to Note 8 for more information regarding the Company’s consolidated VIE. Joint venture cash balances are limited to joint venture activities and are not available for other projects, general cash needs or distribution to us without approval of the board of directors, or equivalent body, of the respective joint ventures. At September 30, 2016 and December 31, 2015, cash and cash equivalents included $14.1 million and a minimal amount, respectively, belonging to a majority-owned joint venture which generally cannot be used for purposes outside the joint venture.
 
Restricted cash of approximately $3.0 million is included in “other assets, net” on the condensed consolidated balance sheets as of September 30, 2016 and December 31, 2015, and represents cash deposited by the Company into a separate account and designated as collateral for a standby letter of credit in the same amount in accordance with contractual agreements. Refer to Note 5 for more information about our standby letter of credit. In addition, restricted cash of approximately $2.0 million is included in “other current assets” on the condensed consolidated balances sheet as of September 30, 2016 and December 31, 2015, which represents cash deposited by a customer, for the benefit of the Company, in an escrow account which is restricted until the customer releases the restriction upon the completion of the job. 
 
The Company holds cash on deposit in U.S. banks, at times, in excess of federally insured limits. Management does not believe that the risk associated with keeping cash deposits in excess of federal deposit insurance limits represents a material risk.