CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income including noncontrolling interest	$ 8,856	$ 3,950
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation (including capital lease amortization)	4,183	3,908
Amortization of purchased intangible assets	4,324	3,913
Amortization of capitalized debt issuance costs	261	489
Stock-based compensation	2,535	2,537
Deferred income tax benefit	(1,904)	(953)
Equity in earnings of joint ventures		(255)
Gain on step acquisition of joint ventures		(2,117)
Loss on disposal of property, plant and equipment	69
Change in:
Accounts receivable, net	(7,311)	2,465
Inventories	(11,267)	1,198
Prepaid expenses and other	(1,210)	321
Accounts payable	680	(2,075)
Customer advances	1,278	(1,327)
Accrued expenses and other liabilities	1,764	(1,800)
Net cash provided by operating activities	2,258	10,254
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of Austin Explosives Company		(3,620)
Step acquisition of joint ventures, net of cash acquired		(2,065)
Acquisition of property, plant and equipment	(4,364)	(2,309)
Change in other non-current assets	20	(59)
Net cash used in investing activities	(4,344)	(8,053)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment on syndicated term loans		(15,374)
Payment on Nord LB term loans	(633)	(593)
Borrowings on bank lines of credit, net	3,999	4,682
Payment on capital lease obligations	(233)	(215)
Payment of dividends	(1,596)	(1,561)
Contribution from noncontrolling stockholder	42
Net proceeds from issuance of common stock to employees and directors	99	70
Tax impact of stock-based compensation	(109)	(639)
Net cash provided by (used in) financing activities	1,569	(13,630)
EFFECTS OF EXCHANGE RATES ON CASH	61	115
NET DECREASE IN CASH AND CASH EQUIVALENTS	(456)	(11,314)
CASH AND CASH EQUIVALENTS, beginning of the period	4,572	22,411
CASH AND CASH EQUIVALENTS, end of the period	$ 4,116	$ 11,097