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Note 2 - Cash and Cash Equivalents and Restricted Cash
 9 Months Ended
Sep. 30, 2015
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 and less than wholly-owned subsidiaries as well as the Company’s VIE. Refer to Note 10 for more information regarding the Company’s consolidated VIE.
Restricted cash of approximately $3.0 million is included in “other assets, net” on the condensed consolidated balance sheet as of September 30, 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 7 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 balance sheet as of September 30, 2015, and 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.