Condensed Consolidated Statement of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income (loss)	$ 9,951,000	$ (5,017,000)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	6,086,006	9,316,355
Stock-based compensation expense	2,921,109	2,357,590
Deferred income taxes	76,000	450,000
Bad debt provision	82,000	789,000
Change in fair value of contingent consideration	844,000	9,187,000
Other operating activities	104,000	105,000
Change in assets:
Accounts receivable and unbilled revenue	(29,395,000)	(2,366,000)
Inventories	3,446,000	(2,573,000)
Prepaid expenses and other assets	(957,000)	16,255,000
Change in liabilities:
Accounts payable	4,304,000	(33,984,000)
Accrued expenses and other liabilities	851,000	4,632,000
Net cash used in operating activities	(1,687,000)	(848,000)
Cash flows from investing activities
Purchases of property and equipment	(7,024,000)	(7,445,000)
Net cash used in investing activities	(7,024,000)	(7,445,000)
Cash flows from financing activities
Net borrowings from revolving credit facilities	11,491,000	12,553,000
Net short-term secured borrowings	37,000	104,000
Repurchases of common stock	(10,041,000)	0
Payments of contingent consideration	(2,089,000)	(4,144,000)
Proceeds from exercise of stock options	1,319,000	1,090,000
Other financing activities	(119,000)	(474,000)
Net cash provided by financing activities	598,000	9,129,000
Effect of exchange rate changes on cash and cash equivalents	726,000	15,000
Increase (decrease) in cash and cash equivalents	(7,387,000)	851,000
Cash and cash equivalents, beginning of period	30,924,000	30,755,000
Cash and cash equivalents, end of period	$ 23,537,000	$ 31,606,000