Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities:
Net income	$ 565	$ 436
Adjustments to reconcile net income to net cash used by operating activities:
Depreciation	357	320
Amortization	218	181
Stock compensation expense	102	129
Changes in operating assets and liabilities:
Accounts receivable	1,748	2,833
Inventories	(1,619)	(2,849)
Prepaid expenses and other assets	(626)	(535)
Accounts payable	(489)	(1,355)
Other accrued liabilities	(2,612)	(2,441)
Total adjustments	(2,920)	(3,717)
Net cash used by operating activities	(2,355)	(3,281)
Investing Activities:
Purchase of property, plant, and equipment	(449)	(574)
Purchase of patents and trademarks	(10)
Acquisition of Diamond Machining Technology	(6,971)
Net cash used by investing activities	(7,430)	(574)
Financing Activities:
Borrowing of long-term debt	9,783	3,404
Cash settlement of stock options	(130)
Proceeds from issuance of common stock	351	321
Distributions to stockholders	(335)	(296)
Purchase of treasury stock	(846)
Net cash provided by financing activities	8,823	3,429
Effect of exchange rate changes on cash	10	(63)
Net decrease in cash and cash equivalents	(952)	(488)
Cash and cash equivalents at beginning of period	2,426	2,286
Cash and cash equivalents at end of period	1,474	1,797
Supplemental cash flow information
Cash paid for income taxes	589	767
Cash paid for interest expense	$ 164	$ 127