Note 11 - Stockholders' Equity, Stock Plans and Other Employee Benefit Plans (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	1 Months Ended	12 Months Ended							0 Months Ended						12 Months Ended							12 Months Ended					12 Months Ended	41 Months Ended				1 Months Ended
	Feb. 13, 2013	Dec. 31, 2011	Mar. 31, 2013	Mar. 25, 2012	Mar. 27, 2011	Mar. 29, 2013	Sep. 13, 2012	Sep. 14, 2010	Jun. 04, 2008	Jun. 04, 2013 Subsequent Event [Member] Chief Executive Officer [Member]	Jun. 05, 2013 Subsequent Event [Member]	Sep. 14, 2010 Newly Authorized Additional Shares Pursuant to 2010 Plan [Member]	Sep. 14, 2010 Shares Not Issued Under 2001 Plan and 2002 Plan [Member]	Sep. 14, 2010 Shares Expired or Forfeited Up to 100000 Shares [Member]	Mar. 31, 2013 Stock Options [Member]	Mar. 31, 2013 Restricted Stock [Member]	Mar. 31, 2013 The 2010 Plan [Member]	Mar. 31, 2013 Options Granted Before The 2010 Plan [Member]	Mar. 31, 2013 Stock Incentive Plans [Member] Minimum [Member]	Mar. 31, 2013 Stock Incentive Plans [Member] Maximum [Member]	Mar. 31, 2013 Executive Chairman of the Board [Member] Base Salary [Member]	Mar. 31, 2013 Executive Chairman of the Board [Member] Consulting Fee [Member]	Mar. 31, 2013 Executive Chairman of the Board [Member]	Mar. 31, 2013 Chief Executive Officer [Member] Base Salary [Member]	Mar. 31, 2013 Chief Operating Officer [Member] Base Salary [Member]	Mar. 31, 2013 Executive Vice President [Member] Base Salary [Member]	Mar. 31, 2013 One Employee [Member] Base Salary [Member]	Mar. 31, 2013 Portion of Shares Repurchased [Member]	Mar. 31, 2013 Sixth Stock Repurchase Plan [Member]	Feb. 01, 2011 Sixth Stock Repurchase Plan [Member]	Nov. 03, 2009 Sixth Stock Repurchase Plan [Member]	Dec. 31, 2011 Tender Offer [Member]	Dec. 31, 2011 Minimum [Member]	Dec. 31, 2011 Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant												150,000	171,000	100,000	343,500	244,844
Increased Number of Shares Available for Issuance Due to Plan Amendment							250,000
Amount of Available Common Shares Reduced by Each Share of Restricted Stock Granted								3.2
Share-Based Compensation Arrangement by Share-Based Payment Award Option Life				5 years													5 years	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				4 years												4 years			3 years	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			50,000							25,000													50,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)			$ 29.29
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights			Upon grant, 10,000 shares vestedimmediately, and the restrictions on the remaining 40,000 shares lapse ratably over a four-year period as follows: 10,000 shares on November 1, 2013, 10,000 shares on November 1, 2014, 10,000 shares on November 1, 2015 and 10,000 shares on November 1, 2016.
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures				177,500
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)			$ 0	$ 17.75	$ 0
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense (in Dollars)			$ 251	$ 101	$ 125
Share-Based Compensation Total Unamortized Compensation Expense (in Dollars)			1,552
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition			2 years 5 months							5 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			192,500	25,500	64,750
Stock Issued During Period, Value, Stock Options Exercised (in Dollars)			389	65	208
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value (in Dollars)			3,523	289	876
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share)			$ 3.81
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share)			$ 17.75
Minimum Percentage of Common Stock Acquired by a Person or Group which Triggers Exercise of New Rights									15.00%		15.00%
Old Right Purchase Price (in Dollars per share)									$ 30
Common Stock, Capital Shares Reserved for Future Issuance			5,191,618						16,589,516		10,188,600
Share Price (in Dollars per share)	$ 36.87					$ 42.50				$ 49.80
New Right Purchase Price (in Dollars per share)											$ 100.00
Treasury Stock, Shares, Acquired			4,579,563																									88,077	480,604
Treasury Stock, Value, Acquired, Cost Method (in Dollars)		13,294	53,398																									3,085	9,792
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		500,000																													500,000	598,959
Stock Repurchase Program Number of Additional Shares Authorized to be Repurchased		98,959																												300,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased			319,396
Modified Dutch Tender Offer Stock Repurchase Price Per Share (in Dollars per share)		$ 22.00																															$ 20.00	$ 22.00
Contractual Obligation (in Dollars)																					600	200		350	289	210	136
Term of Consulting Period Pursuant to the Lorber Employment Agreement																							3 years
Number of Times of Salary and Bonus, Lump Sum Cash Payment			2.99
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options (in Dollars)										1,245
Stock Repurchased During Period, Shares	67,619
Common Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.01		$ 0.01	$ 0.01
Defined Contribution Plan Employee Contributions Percentage of Eligible Compensation			20.00%
Defined Contribution Plan Employer Matching Contribution Rate Per Dollar			0.25
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent			3.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars)			31	30	30
Multiemployer Plans, Plan Contributions (in Dollars)			$ 16	$ 19	$ 20