Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows from Operating Activities:
Net income	$ 651	$ 1,369
Adjustments to reconcile net income to net cash used by operating activities:
Depreciation and amortization	8	28
Changes in assets and liabilities:
Accounts receivable	(12,847)	(6,133)
Royalties and other receivables	2,797	(70)
Due from affiliates		1
Inventories	(3,492)	(2,610)
Prepaid purchases	726	(3,466)
Prepaid expenses and other current assets	310	53
Deferred tax assets and liabilities	149	124
Other assets	10	35
Accounts payable and other current liabilities	751	5,330
Asset allowances, reserves and other	362	(83)
Interest and income taxes payable		57
Net cash used by operating activities	(10,575)	(5,365)
Cash Flows from Investing Activities:
Short term investment	32,194	(102)
Restricted cash	(73)	70
Additions to property and equipment		(21)
Net cash provided (used) by investing activities	32,121	(53)
Cash Flows from Financing Activities:
Net decrease in long-term capital lease obligations		(11)
Net cash used by financing activities		(11)
Net increase (decrease) in cash and cash equivalents	21,546	(5,429)
Cash and cash equivalents at beginning of period	26,328	21,412
Cash and cash equivalents at end of period	47,874	15,983
Cash paid during the period for:
Interest		3
Income taxes	$ 32