Schedule III Real Estate And Accumulated Depreciation (Schedule Of Real Estate Investments And Accumulated Depreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Real Estate and Accumulated Depreciation [Line Items]
Initial cost, Land	$ 22,131
Initial cost, Buildings & Other	197,501
Initial cost, Furniture & equipment	17,174
Additions, (dispositions), and (impairments) Subsequent to acquisition, Land	(282)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	284
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	4,320
Gross amount at December 31, 2017, Land	21,849
Gross amount at December 31, 2017, Buildings & Other	197,785
Gross amount at December 31, 2017, Furniture & equipment	21,494
Accumulated depreciation	(21,548)	$ (28,513)	$ (58,200)	$ (75,403)
Net book value	219,580
Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial cost, Land	22,062
Initial cost, Buildings & Other	195,984
Initial cost, Furniture & equipment	17,174
Additions, (dispositions), and (impairments) Subsequent to acquisition, Land	(213)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	1,714
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	3,624
Gross amount at December 31, 2017, Land	21,849
Gross amount at December 31, 2017, Buildings & Other	197,698
Gross amount at December 31, 2017, Furniture & equipment	20,798
Accumulated depreciation	(21,180)
Net book value	219,165
Construction-In-Progress [Member]
Real Estate and Accumulated Depreciation [Line Items]
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	87
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	191
Gross amount at December 31, 2017, Buildings & Other	87
Gross amount at December 31, 2017, Furniture & equipment	191
Net book value	278
Office Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial cost, Land	69
Initial cost, Buildings & Other	1,517
Additions, (dispositions), and (impairments) Subsequent to acquisition, Land	(69)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	(1,517)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	505
Gross amount at December 31, 2017, Furniture & equipment	505
Accumulated depreciation	(368)
Net book value	$ 137
Super 8 [Member] | Creston, Iowa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Sep. 19, 1978
Encumbrance	KEY
Initial cost, Land	$ 56
Initial cost, Buildings & Other	765
Initial cost, Furniture & equipment	76
Additions, (dispositions), and (impairments) Subsequent to acquisition, Land	89
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	1,572
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	907
Gross amount at December 31, 2017, Land	145
Gross amount at December 31, 2017, Buildings & Other	2,337
Gross amount at December 31, 2017, Furniture & equipment	983
Accumulated depreciation	(2,274)
Net book value	$ 1,191
Quality Inn [Member] | Solomons, Maryland [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Jun. 01, 1986
Encumbrance	KEY
Initial cost, Land	$ 2,304
Initial cost, Buildings & Other	2,719
Initial cost, Furniture & equipment	269
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	1,565
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	462
Gross amount at December 31, 2017, Land	2,304
Gross amount at December 31, 2017, Buildings & Other	4,284
Gross amount at December 31, 2017, Furniture & equipment	731
Accumulated depreciation	(3,356)
Net book value	$ 3,963
Comfort Suites [Member] | Ft. Wayne, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Nov. 07, 2005
Encumbrance	KEY
Initial cost, Land	$ 1,200
Initial cost, Buildings & Other	3,964
Initial cost, Furniture & equipment	840
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	1,060
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	617
Gross amount at December 31, 2017, Land	1,200
Gross amount at December 31, 2017, Buildings & Other	5,024
Gross amount at December 31, 2017, Furniture & equipment	1,457
Accumulated depreciation	(2,765)
Net book value	$ 4,916
Comfort Suites [Member] | South Bend, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Nov. 30, 2005
Encumbrance	KEY
Initial cost, Land	$ 500
Initial cost, Buildings & Other	10,602
Initial cost, Furniture & equipment	910
Additions, (dispositions), and (impairments) Subsequent to acquisition, Land	(302)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	(4,714)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	684
Gross amount at December 31, 2017, Land	198
Gross amount at December 31, 2017, Buildings & Other	5,888
Gross amount at December 31, 2017, Furniture & equipment	1,594
Accumulated depreciation	(1,884)
Net book value	$ 5,796
Supertel Inn [Member] | Creston, Iowa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Jun. 30, 2006
Encumbrance	KEY
Initial cost, Land	$ 235
Initial cost, Buildings & Other	2,364
Initial cost, Furniture & equipment	344
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	(16)
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	69
Gross amount at December 31, 2017, Land	235
Gross amount at December 31, 2017, Buildings & Other	2,348
Gross amount at December 31, 2017, Furniture & equipment	413
Accumulated depreciation	(1,055)
Net book value	$ 1,941
Hilton Garden Inn [Member] | Dowell, Maryland [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	May 25, 2012
Encumbrance	KEY
Initial cost, Land	$ 1,400
Initial cost, Buildings & Other	9,492
Initial cost, Furniture & equipment	323
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	657
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	459
Gross amount at December 31, 2017, Land	1,400
Gross amount at December 31, 2017, Buildings & Other	10,149
Gross amount at December 31, 2017, Furniture & equipment	782
Accumulated depreciation	(1,987)
Net book value	$ 10,344
SpringHill Suites [Member] | San Antonio, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Oct. 01, 2015
Encumbrance	WELLS
Initial cost, Land	$ 1,597
Initial cost, Buildings & Other	14,353
Initial cost, Furniture & equipment	1,550
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	114
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	34
Gross amount at December 31, 2017, Land	1,597
Gross amount at December 31, 2017, Buildings & Other	14,467
Gross amount at December 31, 2017, Furniture & equipment	1,584
Accumulated depreciation	(1,416)
Net book value	$ 16,232
Courtyard by Mariott [Member] | Jacksonville, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Oct. 02, 2015
Encumbrance	WELLS
Initial cost, Land	$ 2,100
Initial cost, Buildings & Other	11,050
Initial cost, Furniture & equipment	850
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	178
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	68
Gross amount at December 31, 2017, Land	2,100
Gross amount at December 31, 2017, Buildings & Other	11,228
Gross amount at December 31, 2017, Furniture & equipment	918
Accumulated depreciation	(1,279)
Net book value	$ 12,967
Hotel Indigo [Member] | Atlanta, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Oct. 02, 2015
Encumbrance	WELLS
Initial cost, Land	$ 800
Initial cost, Buildings & Other	8,700
Initial cost, Furniture & equipment	1,500
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	97
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	212
Gross amount at December 31, 2017, Land	800
Gross amount at December 31, 2017, Buildings & Other	8,797
Gross amount at December 31, 2017, Furniture & equipment	1,712
Accumulated depreciation	(1,335)
Net book value	$ 9,974
Aloft [Member] | Leawood, Kansas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Dec. 14, 2016
Encumbrance	GWB
Initial cost, Land	$ 3,339
Initial cost, Buildings & Other	18,046
Initial cost, Furniture & equipment	1,115
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	133
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	61
Gross amount at December 31, 2017, Land	3,339
Gross amount at December 31, 2017, Buildings & Other	18,179
Gross amount at December 31, 2017, Furniture & equipment	1,176
Accumulated depreciation	(794)
Net book value	$ 21,900
Home2 Suites [Member] | Lexington, Kentucky [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Mar. 24, 2017
Encumbrance	KEY
Initial cost, Land	$ 905
Initial cost, Buildings & Other	14,204
Initial cost, Furniture & equipment	1,351
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	150
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	12
Gross amount at December 31, 2017, Land	905
Gross amount at December 31, 2017, Buildings & Other	14,354
Gross amount at December 31, 2017, Furniture & equipment	1,363
Accumulated depreciation	(501)
Net book value	$ 16,121
Home2 Suites [Member] | Round Rock, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Mar. 24, 2017
Encumbrance	KEY
Initial cost, Land	$ 1,087
Initial cost, Buildings & Other	14,345
Initial cost, Furniture & equipment	1,285
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	150
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	2
Gross amount at December 31, 2017, Land	1,087
Gross amount at December 31, 2017, Buildings & Other	14,495
Gross amount at December 31, 2017, Furniture & equipment	1,287
Accumulated depreciation	(480)
Net book value	$ 16,389
Home2 Suites [Member] | Tallahassee, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Mar. 24, 2017
Encumbrance	KEY
Initial cost, Land	$ 1,519
Initial cost, Buildings & Other	18,229
Initial cost, Furniture & equipment	1,727
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	159
Gross amount at December 31, 2017, Land	1,519
Gross amount at December 31, 2017, Buildings & Other	18,388
Gross amount at December 31, 2017, Furniture & equipment	1,727
Accumulated depreciation	(623)
Net book value	$ 21,011
Home2 Suites [Member] | Southaven, Mississippi [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Apr. 14, 2017
Encumbrance	MS
Initial cost, Land	$ 1,311
Initial cost, Buildings & Other	16,792
Initial cost, Furniture & equipment	897
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	184
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	9
Gross amount at December 31, 2017, Land	1,311
Gross amount at December 31, 2017, Buildings & Other	16,976
Gross amount at December 31, 2017, Furniture & equipment	906
Accumulated depreciation	(593)
Net book value	$ 18,600
Hampton Inn And Suites [Member] | Lake Mary, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Jun. 19, 2017
Encumbrance	KEY
Initial cost, Land	$ 1,200
Initial cost, Buildings & Other	16,432
Initial cost, Furniture & equipment	1,773
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	175
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	3
Gross amount at December 31, 2017, Land	1,200
Gross amount at December 31, 2017, Buildings & Other	16,607
Gross amount at December 31, 2017, Furniture & equipment	1,776
Accumulated depreciation	(387)
Net book value	$ 19,196
Fairfield Inn & Suites [Member] | El Paso, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Aug. 31, 2017
Encumbrance	KEY
Initial cost, Land	$ 1,014
Initial cost, Buildings & Other	14,297
Initial cost, Furniture & equipment	1,089
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	100
Gross amount at December 31, 2017, Land	1,014
Gross amount at December 31, 2017, Buildings & Other	14,397
Gross amount at December 31, 2017, Furniture & equipment	1,089
Accumulated depreciation	(203)
Net book value	$ 16,297
Residence Inn [Member] | Austin, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Acquisition date	Aug. 31, 2017
Encumbrance	KEY
Initial cost, Land	$ 1,495
Initial cost, Buildings & Other	19,630
Initial cost, Furniture & equipment	1,275
Additions, (dispositions), and (impairments) Subsequent to acquisition, Buildings & Other	150
Additions, (dispositions), and (impairments) Subsequent to acquisition, Furniture & equipment	25
Gross amount at December 31, 2017, Land	1,495
Gross amount at December 31, 2017, Buildings & Other	19,780
Gross amount at December 31, 2017, Furniture & equipment	1,300
Accumulated depreciation	(248)
Net book value	$ 22,327